Diversity and distribution of Brachionidae (Rotifera) in Thailand, with a key to the species

  • Sujeephon Athibai Khon Kaen University, Thailand.
  • Hendrik Segers Royal Belgian Institute of Natural Sciences, Belgium.
  • La-orsri Sanoamuang | la_orsri@kku.ac.th Khon Kaen University, Thailand.

Abstract

We investigated the diversity of brachionid rotifers in Thailand. Rotifers were collected from a wide range of habitat types (294 sites, 508 samples) including canals, lakes, peat swamps, ponds, reservoirs, rice fields, rivers, swamps and temporary ponds from April 1998 to January 2004. Twenty-eight species including 11 infrasubspecific forms belonging to five genera were identified. The most frequently encountered species was Brachionus falcatus (50.7% of the sampling sites), followed by Keratella cochlearis (50%), B. angularis (49.7%), K. tropica (46.3%) and B. forficula (45.9%). Less frequently encountered species were B. caudatus, B. durgae and B. urceolaris. These species were found in low abundances and only in a single site. Two sites in the Northeast – Nong Changpeuak and Bueng Srithat – recorded the greatest richness with 15 taxa, whereas no brachionid rotifers were found in 31 sites. On average, the species richness was five taxa per sampling site. A key to the genera and species of Thai brachionid rotifers is provided.

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Published
2013-08-26
Section
Freshwater Invertebrates Congress
Supporting Agencies
Work supported by the Royal Golden Jubilee PhD Program No. PHD/0218/2545, and the National Research University Project of Thailand, Office of the Higher Education Commission, through the Holistic Watershed Management Cluster of Khon Kaen University
Keywords:
biodiversity, Brachionus, Keratella, rotifers, Southeast Asia.
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How to Cite
1.
Athibai S, Segers H, Sanoamuang L- orsri. Diversity and distribution of Brachionidae (Rotifera) in Thailand, with a key to the species. jlimnol [Internet]. 26Aug.2013 [cited 23Jan.2020];72(2s):e17. Available from: https://www.jlimnol.it/index.php/jlimnol/article/view/jlimnol.2013.s2.e17

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